I'm new to this posting thing. But I sure enjoy read all the posting here. This is one great forum.
First I would like to say thanks for this posting. Project idea. After reading this post I just could not stop thinking about the project. Not owning a golf cart of my own, I have only repaired carts for local golf clubs. We had to get busy.
So I started with a G9 stock cart which I had borrowed from a local Golf course to see if it could be done.
Reading other threads here, maybe other member might need a set with all the snow were getting. Here is my first attempt G9 Cart with Skies & tracks.

Thanks Gornoman
The tracks & Skies work really good for the first trial run. We took it pretty easy not knowing what could go wrong. The borrowed cart was for getting measurements only for the build. We could not resist given it trial run before return the cart back.
We have found a old G2 been sitting behind someone house for 4yrs for free. After a day of TLC the old G2 was running strong. The cart is alittle rough looking but will be great for testing.
Last week we had well over 15" of fresh snow and the G2 had no problems getting around.
We just got another 12", can't wait to give another run.
Here is some photos of the free G2 cart converted to tracks.